Pith Number

pith:BH3XP7HS

pith:2026:BH3XP7HSTRDRAZDOM4NURIZ7ZP

not attested not anchored not stored refs pending

A multi-eigenbasis approach to covariance matrix denoising for cosmological inference

Wynne Turner

arxiv:2606.04089 v1 · 2026-06-02 · astro-ph.CO · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BH3XP7HSTRDRAZDOM4NURIZ7ZP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-04T00:06:46.212039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09f777fcf29c4710646e671b48a33fcbd8999d377623a009b302834d20818dd4

Aliases

arxiv: 2606.04089 · arxiv_version: 2606.04089v1 · doi: 10.48550/arxiv.2606.04089 · pith_short_12: BH3XP7HSTRDR · pith_short_16: BH3XP7HSTRDRAZDO · pith_short_8: BH3XP7HS

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BH3XP7HSTRDRAZDOM4NURIZ7ZP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 09f777fcf29c4710646e671b48a33fcbd8999d377623a009b302834d20818dd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faa653433a773909ecf47e7df491e86d0b8791ffe4370ea594bc7ee36f2200d3",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-06-02T18:00:03Z",
    "title_canon_sha256": "5feb6bfdbd33d5b838c320ed65828f15064bb11a02507c5c7479f79281087116"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.04089",
    "kind": "arxiv",
    "version": 1
  }
}